Solubility Assignment

 

 

Your job to write balanced, complete ionic equations for each of these combinations.  These are the combinations that have precipitates:

 

1w2

1w3

1w4

1w5

1w8

1w9

2w8

2w9

2w11

3w7

3w8

3w9

3w12

4w11

5w6

5w7

5w8

5w9

5w12

6w8

6w9

8w10

8w11

8w12

9w10

9w11

9x12

10w11

 

 

 

The numbers in the chart above are row and column numbers where you mixed your chemicals during the lab.  If you don’t have a lab sheet you can get it by clicking  Solubility of Some Ionic Compounds – blank lab sheet      and 

Solubility of Some Ionic Compounds – data sheet – blank lab sheet . 

 

Before you start writing the equations, you will want to print out the revised solubility chart by clicking  Solubility Chart – like Fig. 7.3 on p. 185 of text .  Notice that I’ve added the  Sr2+  as an exception to  SO42-  salts’ solubility on row 4, and CrO42- as an insoluble ion on row 5.  These will help you identify some of the precipitates that the chart wasn’t able to identify. Good luck getting all those precipitates.  As you see there are only 28 left for you to do minus the ones we did in class.